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3 years ago

What are the values of a1 and r of the geometric series?

Mathematics

1 answer:

tester [92]3 years ago

4 0

Answer:

r = 1/3

= 1

Step-by-step explanation:

1 + 1/3 + 1/9 + 1/27 + 1/ 81

In this series a is the first term = 1

r is the common ratio = 2nd term/1st term = 3rd term/ 2nd term

r = 1/3 ÷ 1 = 1/9 ÷ 1/3

r = 1/3

I hope this was helpful, please mark as brainliest

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Can someone plzzz help with numbers 11-12 plzzz show work cuz I’m not understanding this plz

Jet001 [13]

Answer:

11-12=-1

Step-by-step explanation:

There is numbers below zero

since 11 is 1 below 12

The answer is a negative number

and is -1

5 0

3 years ago

Three is what percent of eight

svet-max [94.6K]

Answer:

Step-by-step explanation:

x% of 8 = 3

x% = ⅜ =0.375 = 37.5%

3 is 37.5% of 8

3 0

3 years ago

There are about 10^24 stars in the universe. Each galaxy has approximately the same number of stars as the Milky Way Galaxy. Abo

maks197457 [2]

Answer:

$10^{13}$ galaxies.

Step-by-step explanation:

There are about $10^{24}$ stars in the universe.

The Milky Way galaxy $10 * 10^{10}$ stars.

All we need to do to find the number of galaxies is to divide the total number of stars in the universe by the number of stars in the Milky Way:

Number of galaxies = (Number of stars in the universe) / (Number of stars in the Milky Way)

Number of galaxies = $\frac{10^{24}}{10 * 10^{10}}$

N = $\frac{10^{24}}{10^{11}}$

N = $10^{24 - 11} = 10^{13}$

The number of galaxies in the universe is approximately $10^{13}$ .

7 0

3 years ago

URGENT PLEASE !!!! Please answer correctly !!Will mark Brianliest !!!!!!!!!!

nirvana33 [79]

Answer:

Step-by-step explanation:

Square Root of 85

4 0

2 years ago

Hurry up someone please

Lostsunrise [7]

Answer:

x = 19.6

Step-by-step explanation:

If we need to find the value of x then first we need to

(7x-25) + (3x +9) = 180 (angles at the same side of transversal will be equal to 180 degree )

10x -16 = 180

10x = 180 +16

10x = 196

x = 196/10

x = 19.6

4 0

3 years ago